public class Test {
    public static void main(String[] args) {
        BinarySearchTree binarySearchTree = new BinarySearchTree();
        binarySearchTree.insert(12);
        binarySearchTree.insert(4);
        binarySearchTree.insert(5);
        binarySearchTree.insert(10);
        binarySearchTree.insert(8);
        binarySearchTree.insert(3);

        System.out.println("hello,chuner");
        binarySearchTree.removeNode(4);
        System.out.println("hello,maner");

    }
}
